<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="../bootstrap/css/bootstrap.min.css">
    <link rel="stylesheet" href="../bootstrap/css/bootstrap-theme.min.css">
    <script src="../bootstrap/js/jquery-3.4.1.min.js"></script>
    <script src="../bootstrap/js/bootstrap.min.js"></script>
</head>

<body>
    <div class="container">
        <button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal"
            data-whatever="@mdo">Open modal for @mdo</button>
        <button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal"
            data-whatever="@fat">Open modal for @fat</button>
        <button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal"
            data-whatever="@getbootstrap">Open modal for @getbootstrap</button>

        <div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel">
            <div class="modal-dialog" role="document">
                <div class="modal-content">
                    <div class="modal-header">
                        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span
                                aria-hidden="true">&times;</span></button>
                        <h4 class="modal-title" id="exampleModalLabel">New message</h4>
                    </div>
                    <div class="modal-body">
                        <form>
                            <div class="form-group">
                                <label for="recipient-name" class="control-label">Recipient:</label>
                                <input type="text" class="form-control" id="recipient-name">
                            </div>
                            <div class="form-group">
                                <label for="message-text" class="control-label">Message:</label>
                                <textarea class="form-control" id="message-text"></textarea>
                            </div>
                        </form>
                    </div>
                    <div class="modal-footer">
                        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
                        <button type="button" class="btn btn-primary">Send message</button>
                    </div>
                </div>
            </div>
        </div>
    </div>
</body>
<script>
    $('#exampleModal').on('show.bs.modal', function (event) {
        var button = $(event.relatedTarget) // Button that triggered the modal
        var recipient = button.data('whatever') // Extract info from data-* attributes
        // If necessary, you could initiate an AJAX request here (and then do the updating in a callback).
        // Update the modal's content. We'll use jQuery here, but you could use a data binding library or other methods instead.
        var modal = $(this)
        modal.find('.modal-title').text('New message to ' + recipient)
        modal.find('.modal-body input').val(recipient)
    })
</script>

</html>